The First Lady and first daughters are still in London, last night visiting a pub for a 'fish and chip' supper, as well as stopping by the Harry Potter set. They visited the Houses of Parliament and the Big Ben clocktower earlier in the day, as well as stopping by to see Sarah Brown at No.10.
They visited Westminster Abbey today, and my friend who works there was lucky enough to see them. "Mrs. O wore yellow!" was one of her remarks.